Pump-rod swivel for windmills



Feb. 24, 1931. $|MPSON PUMP ROD SWIVEL FOR, WINDMILLS Filed July 9, 1928 dust, "rain or other atmospheric conditions.

l atented Feb. 24,1931

' JOHN srMPso N, or 'FAIRBURY, NEBRASKA,

' particularly; to the structure and arrangei I men.-; On the oil rece tacle" 15 is seated the vcowl 16 which. encloses all of the working,

"automatic lubrication tothe pump rod swivel.

Its primary object is'the provision ofan ture whereby thepumpirod swivel may be PANY; on 'FAIB RY, nnimns m;

I I j-rumr-non s ivnL i 1 Application fiieduiu 3, invention relates to windmills and ment of-the'f-pump rod swivel.

arrangement-for extending the principle of Another object is the provision of a strucsubjected to the action of the lubricant which is splashed or carried by the action of the.

gears and pitmenof the windmill.

rod :swivel mount which is easily accessible Still another objectis thepositioning of the windmill swivel under the'cowl-of the windmillso that it'will not be affected byi Another object is the provision ofa pump for repairs. g r Y 7 I Stillanother object isthe provision of a swivel arrangement which will function freely and easily and'which is not liable to get out of repair."

Having in View these. objects and others which will be pointed out in the following description, I will now refer to the draw-' ings, in which Figure 1 is aview in frontelevation of the windmill head with parts of the cowl and oil reservoir brokenaway to disclose the posit-ion and structure of the novel pump ro 1 swivel.

Figure 2 is a view in front elevation of the pump rod swivel.

Figure 3 is a view in side elevation of the pump rod swivel. r I

In common with nearly all windmills the windmill shown in the drawings includes a wheel shaft 10 with'means for lubricating i the pitmen 11 to actuate the pump rod '12.

a In the present instance the shaft 10 is connected to pinions (not shown) which mesh :with the helical gears 13 having the pitmen 11 connected eccentrically thereto. The crossheadconnecting the pitmen 11 at their Vupperends travels in the guide shoes 14 for within the oilreceptacle 15 and the oil in js'sleiton ro FAI BuRYWIuDMitLcQIvr- A'coRroRA'rIoN' on NTEBRAiSKAt roawinn s Y i v Serial 1Y0. 29 1 -169 I r the oil bathis carried up vvardlvtothfi cross;

head by the la'ction'fofthegearing and pit* parts of the windmill to exclude rain,- wind, snow and dust; The windmill-head isfrotatably'moun-ted on avertical mast project;- ingupwardly from the tower 17 All of the 7 parts thus far described areshown in. greaterf detail and are more fully-explained inP at ent No; 1,611,114','granted to the Fairbury. ,lVindmillGompanyjas the jassignee'ofGla 77 a ence G I-Ienney, ,on' December,'1&,"192 6.} I In all prior constructionsso far. as I; am

aware; the pump rod 12-is rigidly connected to} the: crosshead. 1 Since the; windmill he UNITED STATES:

is; frequently turned: on "its. vertical ;aXis

ithroughjthe actionofr-the wind itiis neces: "sary-to provide a swivel i'nthe pumprod; to prevent the twisting of xthe'ipump rod when the windmill headris turned. Sofa-r as 153,111

portion of the'pump rod; below the'win'dmill aware the swivel is always position'edin that head :where it is exposed at ialltimesto the V elements. This-swivel ist-relatively inacces sible and=itse1dom receives any attention with the resultfthatit is very apt to getout of repair because of, .illsllfiicient lubrication;

I i ppare t; hovvete .,-that'a swivel which is suh e ted to continuous movement; such as thatiM eP mP Q a- W ndmfiL'must be d q tely l i at d both to reducefric-g tion 'and to p'revent the undue wearing-of 7 vided withflanged ends" 19 and with a de pending :U-shaped member 20 andalso with a lateral plate-likeprojection21. The parts 18 to 21 inclusive are all of integral fcons'truction and they are preferably made from a light weightmetal or alloy; 'Seatedagai-nst;

the lower portion of theU-shaped member 20 is a clamping plate 22' which is secured to the member-V20 by meansfof bolts 23 or the like passing through registering apertures in the U-jsha-ped portion :20 and in'the clampplate2-2;- TheU-shaped member 20 andkthe clamping plate22 are each provided with a semicylindrical Vertical channel, the two I channels registering in the assembled device against the projection 21 The pump" rod is also provided Wltll'it nut 26 orsimilarprojection :for preventing the moving away of the crosshe'a'd'from the pump rod. during the upward movement of the pitmen."

' The lubrication of thew'indmill is entirely automatic. The helical gearing 13 is partly immersed in the lubricant, the wrist pin to which the pitman is attached being forced to dip into the lubricant." The lubricant then creeps upwardly OH'bOtll the guidesho es and the pitmen during'the reciprocation of the pitmen and it finally creeps over the crosshead, As described :in the aforementioned patent additional-means are provided for positively forcing the lubricant to travel upwardly on the guide shoes and on the pitmen. Ihe prior arrangement as'well as all other prior arrangements haveprovided for the automatic lubrication of all working'parts of the windmillexcept the'swivel of the pump" rod.- '7

Bypositioning the swivel of the pump rod in the manner shownin the drawings, the lu- 'bricant which creeps over the crosshead is carried into the swivel of the pump rod, this action being facilitated by theireciprocation of the pitmen and-of the pumprod. i Due to the'lubrication which it receivesthe parts of the swivel will notbecome gummed'" or clogged as they would be ifheavy. greaseiwere 1. '-Automatically operable means for lu bricating-the pump rod swivel of a windmill,

said means including an oil bath in the windmill head,imeclianismin the wiiidmllfor conv'erting rotary motion into rectilinear reciprocatingmotion, said mechanism includng a pitnian crosshead and crosshead guide, the lower "portion of said mechanism beingim mersed in the oil of said oil'ba'th whereby the oil is conveyed by splashing and creeping to all partsof said crosshead, and a swivel on said crosshead for the pump rod of the windmill lubricated by the oil conveyed to the crosshead; a r

2. Automatically operable means for lu-r bricating the pump rod swivel ofa windmill,

said means including a windmill head having lower portion of said; mechanism being. im-

mersed in the oil of said oil bath whereby 111- bricant is conveyed to all parts of said mechanism'by, splashing and creeping during the movements thereof, saidmechanism including;a pump-rod, a crosshead and a .crosshead guide, and a swivel connection between said jcrosshead' and the upper extremity o fsa d used to lubricate a swivel which is'entirel'yexposed to the air and whereth'e lubricant was 7 allowed to dry out and become filled withfdust and sand. Due to the continuous lubrication of the swivel and the flushing of the swivel with lubricant, sand and grit are not permitted to accumulate in the swivel'and the parts are not given a chance to becomerusty. The swivel notonly requires less attention than the prior swivels but its life is material ly increased because of thethorough lubri-g ,cation and because of the protection afl'orded 

